/*
 *  Copyright 2004 Blandware (http://www.blandware.com)
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package com.blandware.atleap.webapp.action.news;

import com.blandware.atleap.webapp.action.core.BaseAction;
import com.blandware.atleap.webapp.form.news.NewsItemForm;
import com.blandware.atleap.webapp.util.core.LocaleUtil;
import com.blandware.atleap.webapp.util.core.WebappConstants;
import com.blandware.atleap.webapp.util.news.NewsModuleWebConstants;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.List;

/**
 * <p>Returns page with form to create news item body
 * </p>
 * <p><a href="CallCreateNewsItemBodyAction.java.html"><i>View Source</i></a></p>
 * <p/>
 *
 * @author Sergey Zubtsovskiy <a href="mailto:sergey.zubtsovskiy@blandware.com">&lt;sergey.zubtsovskiy@blandware.com&gt;</a>
 * @version $Revision: 1.26 $ $Date: 2008/04/29 17:51:52 $
 * @struts.action path="/news/callCreateItemBody"
 * input="inputForward"
 * name="newsItemForm"
 * validate="false"
 * roles="news-item-create"
 * scope="request"
 * @struts.action-forward name="inputForward"
 * path=".news.createItem"
 * @struts.action-forward name="createNewsItemBody"
 * path=".news.createItemBody"
 * @struts.action-forward name="listNewsItems"
 * path="/news/listItems.do"
 * redirect="true"
 */
public final class CallCreateNewsItemBodyAction extends BaseAction {
	/**
	 * @param mapping  The ActionMapping used to select this instance
	 * @param form     The optional ActionForm bean for this request (if any)
	 * @param request  The HTTP request we are proceeding
	 * @param response The HTTP response we are creating
	 * @return an ActionForward instance describing where and how
	 *         control should be forwarded, or null if response
	 *         has already been completed
	 */
	public ActionForward execute(ActionMapping mapping, ActionForm form,
	                             HttpServletRequest request, HttpServletResponse response) throws Exception {

		request.getSession().removeAttribute(NewsModuleWebConstants.NEWS_ITEM_SUBMITTED_ACTION_KEY);
        NewsItemForm newsItemForm = (NewsItemForm) form;
        String localesMode = newsItemForm.getLocalesMode();

		if ( isBackPressed(request) ) {
            // First check, may be session has been invalidated and we need to
            // fill content locales again
            if (request.getSession().getAttribute(WebappConstants.CONTENT_LOCALES_COLLECTION_KEY) == null) {
                List contentLocales = LocaleUtil.getInstance(servlet.getServletContext()).getEnabledLocales();
                request.getSession().setAttribute(WebappConstants.CONTENT_LOCALES_COLLECTION_KEY, contentLocales);
            }

            // check 'check all' ckeckbox if needed
            newsItemForm.setAllCheckedFlagForAnnotationCheckboxes(request, localesMode);

			return mapping.findForward("inputForward");
		}

        if (isCancelled(request)) {
            return mapping.findForward("listNewsItems");
        }

		if ( request.getSession().getAttribute(WebappConstants.CONTENT_LOCALES_COLLECTION_KEY) == null ) {
			List contentLocales = LocaleUtil.getInstance(servlet.getServletContext()).getEnabledLocales();
			request.getSession().setAttribute(WebappConstants.CONTENT_LOCALES_COLLECTION_KEY, contentLocales);
		}

		// Check whether user came here not from previous page (or he switched
		// edit mode/language during creating news item)
		if ( !"current".equalsIgnoreCase(localesMode) && !"all".equalsIgnoreCase(localesMode) && newsItemForm.getBodyCheckedBoxes().size() == 0 ) {
			request.setAttribute("beginPage", mapping.findForward("listNewsItems").getPath());
			return mapping.findForward("unsatisfiablePage");
		}

		saveToken(request);
		return mapping.findForward("createNewsItemBody");
	}
}